Caolco
Is this answer correct?
The point P(18, 24) is on the terminal side of θ. Evaluate sin θ.
=4/3



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swissgirl
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hmm what does it mean to be on the terminal side of theta?

Caolco
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Oh I see. Thanks for the diagram. So it is 4/3

swissgirl
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nope i had to switch it cuz i cldnt evaluate 4/3 only 3/4

swissgirl
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smth is wrong hmmmm i must have drawn the pic incorrectly

Caolco
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well the possible answers are
4/5
4/3
3/5
3/4

Caolco
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and I evaluated with 24/18 and just simplified the answer to 4/3. Is that wrong?

swissgirl
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ohhh i see my mess up sin is opposite over hypotnuse
dw:1350264991894:dw

swissgirl
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\( r^2=18^2+24^2\)
\( r^2=900\)
\(r=30\)

swissgirl
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\( sin( \theta) = \large \frac {24}{30}=\frac {4} {5}\)

swissgirl
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by the way r=hypotnuse

swissgirl
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\(Sin( \theta)= \frac{opposite}{hypoynuse}\)

Caolco
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So the answer is 4/5? Damn, I was way off.

swissgirl
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well we forgot about the hypotnuse lol

Caolco
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makes sense. :P Thanks for catching that.